Black Hall Road over Little Suncook River
FairMerrimack County, New Hampshire · .09 MI SW JCT US4 · Structure no. 007900970012200
- Built
- 1924
- 101 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 41 ft
- 1 main span
- Daily traffic
- 2,133
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Black Hall Road over Little Suncook River is a steel stringer/multi-beam or girder carrying Black Hall Road over Little Suncook River in Merrimack County, New Hampshire. It was built in 1924, so it is 101 years old, older than the New Hampshire average of 56.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,133 vehicles a day, roughly 4% of them trucks, projected to reach 3,156 by 2043. The structure is 41 ft (12.5 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Black Hall Road over Little Suncook River built?
It was built in 1924, making it 101 years old in 2025.
What condition is Black Hall Road over Little Suncook River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does Black Hall Road over Little Suncook River carry?
About 2,133 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Black Hall Road over Little Suncook River?
The structure is 41 ft (12.5 m) long with a longest span of 37 ft (11.3 m) and a deck 28 ft wide.
Who owns Black Hall Road over Little Suncook River?
It is owned by the State Highway Agency.